// makes requests params
// ie con.query('SELECT * ... WHERE = ?', [requst params], fcn())
public String makeReqParams(DataObj showObj, List<String> pageParams) {
StringBuilder reqParams = new StringBuilder(128);
reqParams.append("[");
boolean firstIteration = true;
Modules m = new Modules();
for (String param : pageParams) {
if (firstIteration) {
firstIteration = false;
} else {
reqParams.append(",");
}
// check if param is a module
// see how many fkeys this param stands for
List<Integer> fkIndices;
if (m.isModule(param)) {
String tableName = m.modNameToTableName(param);
fkIndices = showObj.indexForForeignKeysOfType(tableName);
} else {
fkIndices = showObj.indexForForeignKeysOfType(param);
}
// for every fk, add another req param
// because each fk will have a ? in the where clause
if (fkIndices.size() > 0) {
boolean firstIndex = true;
for (int fkIndex : fkIndices) {
if (firstIndex) {
firstIndex = false;
} else {
reqParams.append(" , ");
}
reqParams.append("req.params." + param);
}
} else {
reqParams.append("req.params." + param);
}
}
reqParams.append("]");
return reqParams.toString();
}
// From a list of params, this method generates the where clause of the SQL
// statement. ie) select * from table WHERE ____
public String parsePageParam(DataObj showObj, List<String> getParams) {
StringBuilder queryParam = new StringBuilder(512);
boolean firstIteration = true;
Modules m = new Modules();
for (String param : getParams) {
if (firstIteration) {
firstIteration = false;
} else {
queryParam.append(" and ");
}
List<Integer> fkIndices = showObj.indexForForeignKeysOfType(param);
// check if param is a module
if (m.isModule(param)) {
String tableName = m.modNameToTableName(param);
fkIndices = showObj.indexForForeignKeysOfType(tableName);
if (fkIndices.size() > 0) {
boolean firstIndex = true;
for (int fkIndex : fkIndices) {
if (firstIndex) {
firstIndex = false;
} else {
queryParam.append(" or ");
}
String foreignKeyField = showObj.getFieldName(fkIndex);
queryParam.append(showObj.getName() + "." + foreignKeyField + " = ? ");
}
}
// could not find the foreign key because it isthis object
else {
queryParam.append(showObj.getName() + ".ID = ? ");
}
}
// else check if param is a field of dataobj
else if (showObj.isField(param)) {
queryParam.append(showObj.getName() + "." + param + " = ? ");
}
// else check if param is a foreign key dependency of dataobj
else if (fkIndices.size() > 0) {
boolean firstIndex = true;
for (int fkIndex : fkIndices) {
if (firstIndex) {
firstIndex = false;
} else {
queryParam.append(" or ");
}
String foreignKeyField = showObj.getFieldName(fkIndex);
queryParam.append(showObj.getName() + "." + foreignKeyField + " = ? ");
}
}
// check if param is the same name as that object.
// TODO: in this case, it's get by id which has already been
// generated. either skip this generation or keep it
// for later to make communication with cordova easier
else if (showObj.getName().equals(param)) {
queryParam.append(showObj.getName() + ".ID = ? ");
}
// else there is no match. really, this is an error in the config.
// TODO: have parser check that one of these three conditions is true
// now, handle it such that set select * from x where true
else {
queryParam.append(" true ");
}
}
return queryParam.toString();
}